Gamma, E., Helm, R., Johnson, R., & Viissides, J. (1995). Design patterns: Elemets of reusable object - oriented software. Boston: Addison - Wesley.
استشهاد بنمط شيكاغوGamma, Erich, Richard Helm, Ralph Johnson, و John Viissides. Design Patterns: Elemets of Reusable Object - Oriented Software. Boston: Addison - Wesley, 1995.
MLA استشهادGamma, Erich, Richard Helm, Ralph Johnson, و John Viissides. Design Patterns: Elemets of Reusable Object - Oriented Software. Boston: Addison - Wesley, 1995.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.